Which of the following is a good strategy for avoiding fatigue?

Sitting up straight is a good strategy for avoiding fatigue because proper posture helps maintain blood circulation and keeps your body engaged and alert. When you sit upright, it reduces strain on your muscles and spine, which can help you feel more comfortable and focused while driving. In contrast, slouching or poor posture can lead to discomfort and a greater sense of tiredness, which can impair your ability to concentrate on the road.

The other strategies might provide temporary relief or stimulation but do not address the fundamental issue of physical fatigue as effectively. For example, driving every hour may be helpful for taking breaks, but it does not specifically focus on your posture, which is critical for maintaining alertness. While maintaining a conversation can help keep your mind engaged, it might not be sufficient for preventing fatigue on its own. Listening to loud music could distract you from the task at hand and may not be an effective way to stay alert.